Perhaps you should try some spelling variations:
"element mapping algorithm" » "element making algorithm" (Expand Search), "element mining algorithm" (Expand Search), "element learning algorithm" (Expand Search), "elemental mapping algorithm" (Expand Search), "element modeling algorithm" (Expand Search), "argument mapping algorithm" (Expand Search)
"engagement based algorithm" » "management based algorithm" (Expand Search), "fragment based algorithm" (Expand Search), "engagement model algorithm" (Expand Search)
"level coding algorithm" » "level cosine algorithm" (Expand Search), "level modeling algorithm" (Expand Search), "level finding algorithm" (Expand Search), "level according algorithm" (Expand Search), "level using algorithm" (Expand Search)

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("engagement based algorithm") OR ((("element mapping algorithm") OR ("level coding algorithm"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"engagement based algorithm\") OR (((\"element mapping algorithm\") OR (\"level coding algorithm\"))))".
• Removing quotes may allow a broader search: (( engagement based algorithm ) OR ((( element mapping algorithm ) OR ( level coding algorithm )))).
• Adding a wildcard symbol may retrieve word variants: (("engagement based algorithm") OR ((("element mapping algorithm") OR ("level coding algorithm"))))*.